General

  • Target
    cf1b38106e42989ddffb99e0163787135e7b294c5d5e88e3b47ca1b7cd0d6681
  • Size 9.0MB
  • Sample241105-j22chsyclr
  • SHA256 cf1b38106e42989ddffb99e0163787135e7b294c5d5e88e3b47ca1b7cd0d6681
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • tofsee

C2
  • 43.231.4.7

  • lazystax.ru

Extracted

Family
  • vidar

Version
  • 34.5

Botnet
  • 517

C2
  • http://newcoldstart.com/

Attributes
  • profile_id

    517

Extracted

Family
  • djvu

C2
  • http://qpao.top/nddddhsspen6/get.php

Attributes
  • extension

    .lisp

  • offline_id

    OERd2J7H77Gx6pSuT1wDtZ44ScPhj765hrrFkKt1

  • payload_url

    http://qpao.top/files/penelop/updatewin1.exe

    http://qpao.top/files/penelop/updatewin2.exe

    http://qpao.top/files/penelop/updatewin.exe

    http://qpao.top/files/penelop/3.exe

    http://qpao.top/files/penelop/4.exe

    http://qpao.top/files/penelop/5.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family
  • redline

Botnet
  • Btc_YeaR

C2
  • 86.105.252.12:35200

Extracted

Family
  • smokeloader

Botnet
  • pub1

Extracted

Family
  • smokeloader

Botnet
  • 2010

Extracted

Family
  • matanbuchus

C2
  • http://gw397iwauwsf.top/Plugin.triumphdrop

Targets

    • Target
      0x000100000001ab86-55.exe
    • Size 262KB
    • SHA256 205c40f2733ba3e30cc538adc6ac6ee46f4c84a245337a36108095b9280abb37
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      0x000100000001ab87-47.exe
    • Size 71KB
    • SHA256 298d334b630c77b70e66cf5e9c1924c7f0d498b02c2397e92e2d9efdff2e1bdf
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      0x000100000001ab9c-70.exe
    • Size 977KB
    • SHA256 bb5d2c07ce902c78227325bf5f336c04335874445fc0635a6b67ae5ba9d2fefc
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Target
      0x000100000001ad02-313.exe
    • Size 620KB
    • SHA256 4788a1207c8a83d6051a12d1bbc63e889fbf142e9479c8d2919e8dcb0e4a6cc4
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Target
      0x000200000001aca8-173.exe
    • Size 61KB
    • SHA256 8b581869bf8944a8e0aa169adea2a4afe47434123da477132880aff6a5032181
    • MD5 SHA1 SHA512 SSDEEP
    Score
    9/10
    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Target
      0x000200000001acb5-183.exe
    • Size 10.2MB
    • SHA256 23cb1064049da1e64c231cacee9908d9c1aed6a57b786740361d206d14bd2973
    • MD5 SHA1 SHA512 SSDEEP
    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Tofsee family

    • Windows security bypass

    • Creates new service(s)

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Suspicious use of SetThreadContext

    • Target
      0x000200000001acdf-236.exe
    • Size 274KB
    • SHA256 5caffdc76a562e098c471feaede5693f9ead92d5c6c10fb3951dd1fa6c12d21d
    • MD5 SHA1 SHA512 SSDEEP
    Score
    8/10
    • Drops file in Drivers directory

    • Target
      0x000200000001ace9-240.exe
    • Size 602KB
    • SHA256 87dc2c320339840a39ae63d4a53a406d2c091573c9f75aa28ea614b454fcfe95
    • MD5 SHA1 SHA512 SSDEEP
    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Vidar Stealer

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Target
      0x000300000001a5a2-209.exe
    • Size 842KB
    • SHA256 1c5319523b316c789c5c29e87675e580a9016b4624f197df889cb942c9a32bfa
    • MD5 SHA1 SHA512 SSDEEP
    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Djvu family

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Modifies file permissions

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Target
      0x000300000001ac90-122.exe
    • Size 411KB
    • SHA256 e6ba7316c20de986784a205b13617c3c13ce4daa628a26d0c2d4bbf0fe7a21c6
    • MD5 SHA1 SHA512 SSDEEP
    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Redline family

    • Target
      0x000300000001ac99-126.exe
    • Size 300KB
    • SHA256 0e3774d65577253a820f1ee272d7a0c96e4c6a869ef8f749fe7f83d2fc49f054
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      0x000300000001ac9e-134.exe
    • Size 311KB
    • SHA256 b0296c0000c40d59a268b223015872d7e57c427358b5e95d1bd6e4ac40dd0f87
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      0x000300000001ac9e-206.exe
    • Size 311KB
    • SHA256 b0296c0000c40d59a268b223015872d7e57c427358b5e95d1bd6e4ac40dd0f87
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      0x000300000001ac9f-141.exe
    • Size 19KB
    • SHA256 08eb269d6c3bfaf4d3cde53a987e0adc96a171235d3c34e3c6e9422920e793dd
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      0x000300000001acec-245.exe
    • Size 482KB
    • SHA256 23a96527c86ed75232f146343a612a96b8a6e70433cbdf39c9a611aeb3191ddd
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      0x000300000001aced-248.exe
    • Size 620KB
    • SHA256 4788a1207c8a83d6051a12d1bbc63e889fbf142e9479c8d2919e8dcb0e4a6cc4
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Enterprise v15

Tasks

static1

upxvmprotect
Score
9/10

behavioral1

Score
1/10

behavioral2

discovery
Score
3/10

behavioral3

discovery
Score
3/10

behavioral4

discovery
Score
3/10

behavioral5

discovery
Score
7/10

behavioral6

discovery
Score
7/10

behavioral7

discovery
Score
7/10

behavioral8

discovery
Score
7/10

behavioral9

discoveryupx
Score
9/10

behavioral10

discoveryupx
Score
9/10

behavioral11

tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan
Score
10/10

behavioral12

tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan
Score
10/10

behavioral13

discovery
Score
8/10

behavioral14

discovery
Score
8/10

behavioral15

vidar517discoveryspywarestealer
Score
10/10

behavioral16

vidar517discoveryspywarestealer
Score
10/10

behavioral17

djvudiscoverypersistenceransomware
Score
10/10

behavioral18

djvudiscoverypersistenceransomware
Score
10/10

behavioral19

redlinebtc_yeardiscoveryinfostealer
Score
10/10

behavioral20

redlinebtc_yeardiscoveryinfostealer
Score
10/10

behavioral21

smokeloaderpub1backdoordiscoverytrojan
Score
10/10

behavioral22

smokeloaderpub1backdoordiscoverytrojan
Score
10/10

behavioral23

smokeloader2010backdoordiscoverytrojan
Score
10/10

behavioral24

smokeloader2010backdoordiscoverytrojan
Score
10/10

behavioral25

smokeloader2010backdoordiscoverytrojan
Score
10/10

behavioral26

smokeloader2010backdoordiscoverytrojan
Score
10/10

behavioral27

discovery
Score
3/10

behavioral28

discovery
Score
3/10

behavioral29

matanbuchusdiscoveryloader
Score
10/10

behavioral30

matanbuchusdiscoveryloader
Score
10/10

behavioral31

discovery
Score
7/10

behavioral32

discovery
Score
7/10